As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT CREW REPORTED CARGO BAY SMOKE DETECTOR WARMING LIGHT ILLUMINATED AT 7000 FT, ACFT RETURNED TO FIELD. MX CREW FOUND ELECTRICAL CONNECTOR LOOSE AND NOT SAFETIED. CLEANED AND RECONNECTED CONNECTOR PLUG AND SAFETIED. OPS CHECK WAS SATISFACTORY.